You're buying based on the price and the fact its from Costco, you're not buying it because its a premium spa with good jetting. Remind yourself of that and you'll probably still get it because to most who buy these its the price that entices them. If you're looking for a premium spa with hydrotherapy this may not be for you.
Actually, the number one reason for considering the Costco one right now is after visiting all the local shops and going to the home show, if I have to talk to another spa salesman I'm going to shoot myself! I'd rather have a root canal then go back to all but one of them that we've met. No offense meant to any spa salesmen here, maybe I've just been unlucky and came across the worst of them?